UPGRADE LICENSE: Only available in the United States. Requires a previous Windows license of any kind to comply with the EULA.
FULL LICENSE: Available in America and in the EU (as the E edition). Does not require a prior license and can be transferred to any PC as long as the software is completely uninstalled prior to a new installation.
OEM LICENSE: This license is tied to the first PC it is installed to. This license may not be transferred to another PC; it can only be sold with that PC to another user if it includes all the original materials.
PRICING: The EU versions of Windows 7 will be sold at the upgrade price, but will be a full retail copy. These editions, however, will be higher than the US price after currency conversion (Pro = 99 quid vs. $100).
How do you interpret this on the MS website? Does this now mean that the version we get in Europe will be either full (at the full price) or upgrade (at the upgrade price) even if we have already pre-ordered at the reduced price?
NOTICE: Regarding Windows 7 “E” Versions
We are intent on providing people with the best possible experience using their PCs with Windows. Building on that important principle, we will ship the same version of Windows 7 in Europe as in rest of the world on the worldwide launch date of 22 October, 2009. This version of Windows 7 includes Windows Internet Explorer 8 to help people get the most from their PCs and the Internet. We will not ship E editions of Windows 7, which would not have included Internet Explorer. Customers who pre-order Windows 7 will receive versions of the product that include Internet Explorer. Customers participating in the Windows Upgrade Option available with select new PCs running Windows Vista will also receive versions of Windows 7 that include Internet Explorer. Customers in Europe will also be able to choose between upgrade and full versions of Windows 7.
Might have to cancel my pre-orders.......
UPDATE
The MS website still shows E versions when placing a pre-order currently.